head-to-head

Z.ai: GLM Flash Latest vs OpenAI: GPT-5.6 Terra Pro

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-04.

Z.ai: GLM Flash Latest OpenAI: GPT-5.6 Terra Pro
Vendor~z-aiopenai
Quality Score100100
Input Price$0.07/M$2.00/M
Output Price$0.25/M$12.00/M
Context Window1,310,7201,050,000
Max Output943,718128,000
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio--

Who wins by task?

TaskZ.ai: GLM Flash LatestOpenAI: GPT-5.6 Terra Pro
SQL Generation 134 132
Code Completion 131 117
Code Documentation 131 129
Regex Writing 119 117
CSV / Spreadsheet Cleanup 134 132
JSON Extraction 131 121
Bulk Data Labeling 129 117
Long-Document Summarization 138 136
Short-Form Summarization 123 113
Blog Post Writing 122 120

Scores reflect capability match + benchmark data + pricing for each task. Methodology →

Related comparisons

Meta: Muse Spark 1.3 Contributor vs Z.ai: GLM Flash Latest Meta: Muse Spark 1.3 Contributor vs OpenAI: GPT-5.6 Terra Pro Meta: Muse Spark 1.3 vs Z.ai: GLM Flash Latest Meta: Muse Spark 1.3 vs OpenAI: GPT-5.6 Terra Pro Google: Gemini 3.8 Flash vs Z.ai: GLM Flash Latest Google: Gemini 3.8 Flash vs OpenAI: GPT-5.6 Terra Pro Google: Gemini 3.8 Flash (batch) vs Z.ai: GLM Flash Latest Google: Gemini 3.8 Flash (batch) vs OpenAI: GPT-5.6 Terra Pro